EP0069978A2 - Flachdruckplatten und ihre Herstellung - Google Patents
Flachdruckplatten und ihre Herstellung Download PDFInfo
- Publication number
- EP0069978A2 EP0069978A2 EP82106054A EP82106054A EP0069978A2 EP 0069978 A2 EP0069978 A2 EP 0069978A2 EP 82106054 A EP82106054 A EP 82106054A EP 82106054 A EP82106054 A EP 82106054A EP 0069978 A2 EP0069978 A2 EP 0069978A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- photosensitive
- water
- plate
- printing plate
- soluble
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000007639 printing Methods 0.000 title claims abstract description 74
- 238000002360 preparation method Methods 0.000 title claims abstract description 11
- 229920005989 resin Polymers 0.000 claims abstract description 42
- 239000011347 resin Substances 0.000 claims abstract description 42
- 239000000126 substance Substances 0.000 claims abstract description 33
- 239000000203 mixture Substances 0.000 claims abstract description 17
- 239000000178 monomer Substances 0.000 claims abstract description 15
- 238000007720 emulsion polymerization reaction Methods 0.000 claims abstract description 14
- 239000000463 material Substances 0.000 claims abstract description 13
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 claims abstract description 8
- 125000005010 perfluoroalkyl group Chemical group 0.000 claims abstract description 8
- 125000005395 methacrylic acid group Chemical group 0.000 claims abstract description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 27
- 125000000664 diazo group Chemical group [N-]=[N+]=[*] 0.000 claims description 17
- 238000000034 method Methods 0.000 claims description 13
- 238000011161 development Methods 0.000 claims description 11
- 238000010438 heat treatment Methods 0.000 claims description 9
- 239000007787 solid Substances 0.000 claims description 9
- 239000002985 plastic film Substances 0.000 claims description 4
- 229920006255 plastic film Polymers 0.000 claims description 4
- 230000001678 irradiating effect Effects 0.000 claims 1
- 239000010410 layer Substances 0.000 description 26
- 239000011737 fluorine Substances 0.000 description 24
- 229910052731 fluorine Inorganic materials 0.000 description 24
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 description 23
- 239000007864 aqueous solution Substances 0.000 description 12
- -1 iron aluminum) Chemical class 0.000 description 12
- 238000001035 drying Methods 0.000 description 11
- 239000000047 product Substances 0.000 description 10
- 229910052782 aluminium Inorganic materials 0.000 description 9
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 9
- 239000005871 repellent Substances 0.000 description 9
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 description 8
- 229910052753 mercury Inorganic materials 0.000 description 8
- 239000012790 adhesive layer Substances 0.000 description 7
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 description 6
- 230000000694 effects Effects 0.000 description 4
- 238000001914 filtration Methods 0.000 description 4
- 239000011369 resultant mixture Substances 0.000 description 4
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- 238000000605 extraction Methods 0.000 description 3
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- JIGUQPWFLRLWPJ-UHFFFAOYSA-N Ethyl acrylate Chemical compound CCOC(=O)C=C JIGUQPWFLRLWPJ-UHFFFAOYSA-N 0.000 description 2
- 239000002202 Polyethylene glycol Substances 0.000 description 2
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 description 2
- 239000012954 diazonium Substances 0.000 description 2
- 150000001989 diazonium salts Chemical class 0.000 description 2
- 238000007645 offset printing Methods 0.000 description 2
- PNJWIWWMYCMZRO-UHFFFAOYSA-N pent‐4‐en‐2‐one Natural products CC(=O)CC=C PNJWIWWMYCMZRO-UHFFFAOYSA-N 0.000 description 2
- 229920001223 polyethylene glycol Polymers 0.000 description 2
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- 239000011118 polyvinyl acetate Substances 0.000 description 2
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- 238000010186 staining Methods 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- UWFRVQVNYNPBEF-UHFFFAOYSA-N 1-(2,4-dimethylphenyl)propan-1-one Chemical compound CCC(=O)C1=CC=C(C)C=C1C UWFRVQVNYNPBEF-UHFFFAOYSA-N 0.000 description 1
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 description 1
- HDPLHDGYGLENEI-UHFFFAOYSA-N 2-[1-(oxiran-2-ylmethoxy)propan-2-yloxymethyl]oxirane Chemical compound C1OC1COC(C)COCC1CO1 HDPLHDGYGLENEI-UHFFFAOYSA-N 0.000 description 1
- NPSJHQMIVNJLNN-UHFFFAOYSA-N 2-ethylhexyl 4-nitrobenzoate Chemical compound CCCCC(CC)COC(=O)C1=CC=C([N+]([O-])=O)C=C1 NPSJHQMIVNJLNN-UHFFFAOYSA-N 0.000 description 1
- 239000004808 2-ethylhexylester Substances 0.000 description 1
- OMIGHNLMNHATMP-UHFFFAOYSA-N 2-hydroxyethyl prop-2-enoate Chemical compound OCCOC(=O)C=C OMIGHNLMNHATMP-UHFFFAOYSA-N 0.000 description 1
- VHSHLMUCYSAUQU-UHFFFAOYSA-N 2-hydroxypropyl methacrylate Chemical compound CC(O)COC(=O)C(C)=C VHSHLMUCYSAUQU-UHFFFAOYSA-N 0.000 description 1
- GWZMWHWAWHPNHN-UHFFFAOYSA-N 2-hydroxypropyl prop-2-enoate Chemical compound CC(O)COC(=O)C=C GWZMWHWAWHPNHN-UHFFFAOYSA-N 0.000 description 1
- HBZFBSFGXQBQTB-UHFFFAOYSA-N 3,3,4,4,5,5,6,6,7,7,8,8,9,9,10,10,10-heptadecafluorodecyl 2-methylprop-2-enoate Chemical compound CC(=C)C(=O)OCCC(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)F HBZFBSFGXQBQTB-UHFFFAOYSA-N 0.000 description 1
- XUCBCZBEEVPKKM-UHFFFAOYSA-N 3,3,4,4,5,5,6,6,7,7,8,8,9,9,10,10,11,11,11-nonadecafluoroundecyl 2-methylprop-2-enoate Chemical compound CC(=C)C(=O)OCCC(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)F XUCBCZBEEVPKKM-UHFFFAOYSA-N 0.000 description 1
- ZHYOIXVIMOBMSX-UHFFFAOYSA-N 3,3,4,4,5,5,6,6,7,7,8,8,9,9,9-pentadecafluorononyl 2-methylprop-2-enoate Chemical compound CC(=C)C(=O)OCCC(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)F ZHYOIXVIMOBMSX-UHFFFAOYSA-N 0.000 description 1
- PKPKRTXQJZSNCQ-UHFFFAOYSA-N 3,3,4,4,5,5,6,6,7,7,8,8,9,9,9-pentadecafluorononyl prop-2-enoate Chemical compound FC(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)CCOC(=O)C=C PKPKRTXQJZSNCQ-UHFFFAOYSA-N 0.000 description 1
- NLHHRLWOUZZQLW-UHFFFAOYSA-N Acrylonitrile Chemical compound C=CC#N NLHHRLWOUZZQLW-UHFFFAOYSA-N 0.000 description 1
- WOBHKFSMXKNTIM-UHFFFAOYSA-N Hydroxyethyl methacrylate Chemical compound CC(=C)C(=O)OCCO WOBHKFSMXKNTIM-UHFFFAOYSA-N 0.000 description 1
- CERQOIWHTDAKMF-UHFFFAOYSA-N Methacrylic acid Chemical compound CC(=C)C(O)=O CERQOIWHTDAKMF-UHFFFAOYSA-N 0.000 description 1
- 239000004677 Nylon Substances 0.000 description 1
- 229930040373 Paraformaldehyde Natural products 0.000 description 1
- 206010034972 Photosensitivity reaction Diseases 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- 239000004793 Polystyrene Substances 0.000 description 1
- 239000004372 Polyvinyl alcohol Substances 0.000 description 1
- QOSMNYMQXIVWKY-UHFFFAOYSA-N Propyl levulinate Chemical compound CCCOC(=O)CCC(C)=O QOSMNYMQXIVWKY-UHFFFAOYSA-N 0.000 description 1
- QGIJZPXLSMRDCW-UHFFFAOYSA-N [3,3,4,4,5,5,6,6,7,7,8,8,9,10,10,10-hexadecafluoro-9-(trifluoromethyl)decyl] prop-2-enoate Chemical compound FC(F)(F)C(F)(C(F)(F)F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)CCOC(=O)C=C QGIJZPXLSMRDCW-UHFFFAOYSA-N 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 125000005907 alkyl ester group Chemical group 0.000 description 1
- KCZFLPPCFOHPNI-UHFFFAOYSA-N alumane;iron Chemical compound [AlH3].[Fe] KCZFLPPCFOHPNI-UHFFFAOYSA-N 0.000 description 1
- 239000012298 atmosphere Substances 0.000 description 1
- 239000007795 chemical reaction product Substances 0.000 description 1
- 238000005345 coagulation Methods 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 125000004386 diacrylate group Chemical group 0.000 description 1
- 208000028659 discharge Diseases 0.000 description 1
- 208000002173 dizziness Diseases 0.000 description 1
- 239000000975 dye Substances 0.000 description 1
- 150000002148 esters Chemical class 0.000 description 1
- SUPCQIBBMFXVTL-UHFFFAOYSA-N ethyl 2-methylprop-2-enoate Chemical compound CCOC(=O)C(C)=C SUPCQIBBMFXVTL-UHFFFAOYSA-N 0.000 description 1
- 125000004494 ethyl ester group Chemical group 0.000 description 1
- STVZJERGLQHEKB-UHFFFAOYSA-N ethylene glycol dimethacrylate Chemical compound CC(=C)C(=O)OCCOC(=O)C(C)=C STVZJERGLQHEKB-UHFFFAOYSA-N 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000002657 fibrous material Substances 0.000 description 1
- 239000012943 hotmelt Substances 0.000 description 1
- 125000002768 hydroxyalkyl group Chemical group 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 150000004702 methyl esters Chemical class 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 229920002866 paraformaldehyde Polymers 0.000 description 1
- 238000000016 photochemical curing Methods 0.000 description 1
- 230000036211 photosensitivity Effects 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920000515 polycarbonate Polymers 0.000 description 1
- 239000004417 polycarbonate Substances 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 229920000139 polyethylene terephthalate Polymers 0.000 description 1
- 239000005020 polyethylene terephthalate Substances 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
- 229920002223 polystyrene Polymers 0.000 description 1
- 229920002451 polyvinyl alcohol Polymers 0.000 description 1
- 239000011541 reaction mixture Substances 0.000 description 1
- 238000006748 scratching Methods 0.000 description 1
- 230000002393 scratching effect Effects 0.000 description 1
- DCKVNWZUADLDEH-UHFFFAOYSA-N sec-butyl acetate Chemical compound CCC(C)OC(C)=O DCKVNWZUADLDEH-UHFFFAOYSA-N 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 230000004304 visual acuity Effects 0.000 description 1
- 238000012800 visualization Methods 0.000 description 1
- 239000003232 water-soluble binding agent Substances 0.000 description 1
Images
Classifications
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03F—PHOTOMECHANICAL PRODUCTION OF TEXTURED OR PATTERNED SURFACES, e.g. FOR PRINTING, FOR PROCESSING OF SEMICONDUCTOR DEVICES; MATERIALS THEREFOR; ORIGINALS THEREFOR; APPARATUS SPECIALLY ADAPTED THEREFOR
- G03F7/00—Photomechanical, e.g. photolithographic, production of textured or patterned surfaces, e.g. printing surfaces; Materials therefor, e.g. comprising photoresists; Apparatus specially adapted therefor
- G03F7/004—Photosensitive materials
- G03F7/0046—Photosensitive materials with perfluoro compounds, e.g. for dry lithography
Definitions
- the present invention relates to a waterless lithographic printing plate and its preparation. More particularly, it relates to a photosensitive plate suitable for preparation of a waterless lithographic printing plate and a waterless lithographic printing plate prepared therefrom.
- an oleophilic image is formed on a hydrophylic surface of the printing plate, and dampening water is placed on the non-image part and an ink is placed on the image part.
- the ink attaches also to the non-image part to cause staining of the printing paper.
- the amount of the dampening water is too large, the attachment of the ink on the image part becomes insufficient to cause faintness of the printed image and-also the ink is emulsified to stain the printing paper.
- dampening water is transferred to the printing paper to cause its expansion or contraction, which produces troublesome problems, particularly in multi-color printing.
- the use of dampening water provides various unfavorable influences.
- a printing plate prepared by the use of a photosensitive composition comprising an emulsion polymerization - product of an acrylic or methacrylic monomer having a perfluoroalkyl group in the side chain and a water-soluble .
- photosensitive substance whose water-solubility is variable by irradiation of ultraviolet rays is quite suitable for lithographic printing without employing dampening water.
- a photosensitive plate suitable for preparation of a waterless lithographic printing plate which comprises a support material and a photosensitive layer provided thereon, said photosensitive layer being made of a photosensitive composition comprising an emulsion polymerization product of an acrylic or methacrylic monomer having a perfluoroalkyl group in the side chain and a water-soluble photosensitive substance whose water-solubility is variable by irradiation of ultraviolet rays.
- the photosensitive layer of the photosensitive plate of the invention there may be adopted any of following two procedures.
- the first procedure water is applied on the plate surface after exposure, and the surface is scrubbed with cloth so as to wash out the photosensitive layer of the non-exposed portion to make an image.
- the amount of the watcr- soluble photosensitive substance to the emulsion polymerization product is made relatively small so that the exposed and hardened portion acquires an ink-repellent property.
- the exposed portion becomes the non-image part and the non-exposed portion becomes the image part, i.e. the ink-accepting part.
- the resulting printing plate is of positive type.
- the plate surface after exposure is immersed into water and subjected to vat development without being scrubbed so as to extract with water only the water-soluble photosensitive substance in the photosensitive layer of the non-exposed portion.
- the non-exposed portion essentially consists of the emulsion polymerization product, and the exposed and hardened portion comprises a mixture of the emulsion polymerization product and the water-soluble photosensitive substance.
- the amount of the water-soluble photosensitive substance to the emulsion polymerization product is made relatively large so that the exposed and hardened portion becomes the ink-accepting part.
- the exposed portion becomes the image part, and the non-exposed portion becomes the non-image part.
- the resultant printing plate is of negative type.
- the characteristic feature of the photosensitive plate of the invention that it can provide a positive type printing plate and a negative type printing plate by changing the proportion of water-soluble photosensitive substance to the emulsion polymerization product.
- the image formation is effected by the photo-engraving method, and the photosensitive plate may be handled in quite the same manner as in case of conventional presensitized plates or wipe-on plates. Further, the printing plate after exposure can be developed simply by treatment with water.
- the support material is usually in a sheet or plate form and may be made of metals (e.g. iron aluminum) , plastics (e.g. polyester, nylon), fibrous materials (e.g. paper) , etc.
- metals e.g. iron aluminum
- plastics e.g. polyester, nylon
- fibrous materials e.g. paper
- the emulsion polymerization product of an acrylic or methacrylic monomer having a perfluoroalkyl group in the side chain, especially at the end of the side chain (hereinafter referred to as "fluorine resin"), can be obtained by emulsion polymerization of such perfluoroalkyl-bearing monomer, if necessary, with at least one of other copolymerizable monomers, by a conventional procedure.
- the reaction mixture obtained as the result of the emulsion polymerization and comprising the fluorine resin as the reaction product may be employed as such without further treatment.
- Such emulsion polymerization product i.e.
- ASAHI GUARD AG-710 manufactured by Asahi Glass Co., Ltd.
- ASAHI GUARD PA-550 manufactured by Asahi Glass Co., Ltd.
- DIGURARD F-60 -manufactured by Dainippon Ink and Chemicals, Inc.
- DIGURARD F-70 manufactured by Dainippon Ink and Chemicals, Inc.
- SCOTCH GUARD FC-282 manufactured by Sumitomo 3M
- ZPEL B manufactured by E.I. DuPont
- perfluoroalkyl-bearing monomer examples include (per- fluorononyl)ethyl acrylate, (perfluorononyl)ethyl methacrylate, (perfluoroisononyl)ethyl acrylate, (per- fluoroisononyl)ethyl methacrylate, (perflurooctyl)ethyl acrylate, (perfluorooctyl)ethyl methacrylate, (perfluoro- heptyl)ethyl acrylate, (perfluoroheptyl)ethyl methacrylate, etc.
- Examples of the other copolymerizable monomer include styrene, acrylonitrile, acrylic acid and methacrylic acid, and their esters such as alkyl esters (e.g. methyl ester, ethyl ester, propyl ester, butyl ester, isobutyl ester, 2-ethylhexyl ester, hexyl ester, decyl ester, lauryl ester, stearyl ester), hydroxyalkyl esters (e.g. ⁇ -hydroxyethyl ester) and glycidyl ester.
- alkyl esters e.g. methyl ester, ethyl ester, propyl ester, butyl ester, isobutyl ester, 2-ethylhexyl ester, hexyl ester, decyl ester, lauryl ester, stearyl ester
- hydroxyalkyl esters e.g
- the proportion of these monomers may be optionally selected, but the amount of the perfluoroalkyl-bearing monomer should be not less than 50 % by weight on the basis of the amount of the entire monomers. When the amount is less than 50 % by weight, the ink-repellent property of the printing plate as the ultimate product is inferior.
- the use of the other.copolymerizable monomer may be effective in improvement of the close adherence between the support material and photosensitive layer, the storage stability of the photosensitive plate, the wear-resistance of the printing plate, etc..
- the water-soluble photosensitive substance there may be employed any one which is soluble in water, has a film-forming property and becomes water-insoluble by light-irradiation.
- a diazo resin i.e. condensates of diazonium salts such as p-diazodiphenylamine with formaldehyde or paraformaldehyde
- polyvinyl alcohol or partially saponified polyvinyl acetate having a water-soluble photosensitive group e.g. styryl- pyridinium salt
- a mixture of a water-soluble binder e.g. partially saponified polyvinyl acetate
- a water-soluble acrylic monomer e.g.
- the water-soluble photosensitive substance is preferred to have a relatively low molecular weight in order to ensure its easy extraction at the non-exposed portion, and thus the diazo resin is favorably employed.
- the photosensitive composition may comprise optionally conventional additives.
- silicone resins e.g. silicone emulsion
- dyes may be incorporated for visualization of the image.
- the weight proportion of the fluorine resin and the water-soluble photosensitive substance in the photosensitive composition may be 100 : 0.5 - 500, preferably 100 : 1 - 400.
- the ultimately produced printing plate may be of positive type.
- a negative type printing plate will be obtained.
- the transfer from the positive type to the negative type is dependent on the ink-repellent property of the fluorine resin, the kind of the water-soluble photosensitive substance, the film thickness of the photosensitive layer, the degree of roughness at the surface of the printing plate, the kind of the printing ink, the printing conditions (e.g. printing speed, printing pressure and temperature), etc.
- the water-soluble photosensitive substance may be used in an amount of 0.5 to 20 parts by weight to 100 parts by weight of the fluorine resin.
- the amount exceeds 20 parts by weight but remains under the upper limit of 500 parts by weight, adherence of an ink to the hardened portion takes place so that the resulting printing plate may be used as of negative type.
- the boundary value of 20 parts by weight is shown only for example and is not intended to limit the invention.
- the amount of the water-soluble photosensitive substance is smaller than the lower limit of the said range, the photosensitivity of the photosensitive layer is reduced, and the photo-curing ability is insufficient. Thus, the formation of an image becomes difficult.
- its amount exceeds the upper limit the extraction of the water-soluble photosensitive substance in the non-exposed portion with water is not achieved sufficiently, and a negative type printing plate in which the non-exposed - portion is used as the non-image part is hardly obtained.
- the photosensitive plate of the invention may be prepared by applying the photosensitive composition comprising the fluorine resin and the water-soluble photosensitive substance onto a support material by a conventional method and drying it, for instance, in an oven to form a photosensitive layer.
- the total content of the fluorine resin and the water-soluble photosensitive substance in the photosensitive composition which is aqueous may be usually from 1 to 50 % by weight, preferably from 3 to 30 % by weight.
- the thickness of the photosensitive layer may be usually from 0.1 to 5 microns.
- an adhesive layer may be provided between the support material and the photosensitive layer in order to improve their adhesion.
- a water-soluble adhesive layer gives, as the result of development with water, the surface of the support material as the ink-accepting part.
- the use of a water-insoluble adhesive layer gives the surface of such layer itself as the ink-accepting part.
- a preferred example of the water-soluble adhesive layer is the one made of the water-soluble photosensitive substance to be used for the photosensitive layer.
- Such adhesive layer can be hardened together with the photosensitive layer by exposure to ensure the firm adhesion between the support material and the photosensitive layer (exposed portion).
- the thickness of the water-soluble adhesive layer is desired to be from 0.01 to 1 micron, preferably from 0.03 to 0.5 micron. In case of a water-insoluble adhesive layer, there is no particular, limitation on its thickness.
- a water-impermeable plastic film may be laminated on the photosensitive layer of the photosensitive plate so as to protect the photosensitive layer from the moisture in the atmosphere under the storage. This is particularly effective when the photosensitive layer contains a diazo resin obtained by condensation of a diazonium salt with formaldehyde as the water-soluble photosensitive substance, because the diazo resin is somewhat unstable to moisture.
- the water-impermeable plastic film may be made of polyethylene terephthalate, polyethylene, polypropylene, polycarbonate, polystyrene or the like.
- any adhesive agent of hot melt type may be employed.
- Fig. 1 is a sectional view of an embodiment of the photosensivite plate according to the invention
- Fig. 2 is a sectional view of the printing plate obtained from the photosensitive plate of Fig. 1
- Fig. 3 is a sectional view of another embodiment of the photosensitive plate according to the invention
- Fig. 4 is a sectional view of the printing plate obtained from the photosensitive plate of Fig. 3.
- the printing plates in Figs. 2 and 4 are respectively of positive type and of negative type.
- the numeral 1 indicates a photosensitive layer
- 1-a is a particle of the fluorine resin
- 1-b is a phase of the water-soluble photosensitive substance
- 2 is a support material
- 3 is an exposed portion (non-image part)
- 4 is an exposed portion (image part)
- 5 is a non-exposed portion (non-image part)
- 6 is an original film having a negative image
- 7 is an original film having a positive image.
- Preparation of a positive type printing plate from the photosensitive plate of the invention may be effected in a per se conventional manner.
- the original film having a positive image 6 is brought into close contact with the photosensitive layer 1 of the photosensitive plate in a vacuum frame, and irradiation is made by the use of a chemical lamp or a high pressure mercury lamp.
- water is applied onto the surface of the resulting plate, which is then lightly scrubbed, whereby the exposed portion 3 remains as such without being dissolved in water while in the non-exposed portion, the photosensitive composition is washed out with water to leave an image (Fig. 2).
- the surface of the support material is disclosed, to which an ink attaches.
- the ink attachment does not take place owing to the activity of the fluorine resin. Therefore, application of-dampening water to the non-image part is unnecessary for realization of printing, unlike a conventional offset printing procedure.
- the above obtained printing plate is further subjected to heat treatment, whereby the particles of the fluorine resin at the non-image part are coagulated and the perfluroalkyl groups in the fluorine resin are regularly oriented so that the ink-repellent property at the part can be enhanced.
- the heat treatment is usually effected at a temperature of 100 to 180°C in an oven.
- the preparation may be effected in the same manner as above. Since, however, it is necessary that the exposed portion (image part) becomes the ink-accepting part and the non-exposed portion (non-image part) acquires the ink-repellent property, an additional operation is required before or after the preparation of the printing plate. In order to avoid such additional operation, the following procedure may be adopted. Namely, as shown in Fig. 3, the original film having a negative image 7 is brought into close contact with the photosensitive layer 1 of the photosensitive plate, and irradiation is effected. Then, the original film is eliminated.
- the plate On developing the plate surface, the plate is immersed into water to effect vat development, whereby the exposed portion remains as such, while in the non-exposed portion, only the water-soluble photosensitive substance in the photosensitive layer is dissolved out into water and thus extracted, but the-fluorine resin remains as such. Therefore, the hardened photosensitive layer 4 remains in the exposed portion, but in the non-exposed portion, a layer essentially consisting of the fluorine resin 5 is formed to leave an image (Fig. 4). Consequently, the exposed portion contains a large amount of the water-soluble photosensitive substance so that the ink-repellent property of the fluorine resin is relatively small, and attachment of the ink takes place.
- the non-exposed portion essentially consists of the fluorine resin and thus repels the ink, so that it can become the non-image part.
- the thus obtained printing plate may be as such employed for printing but is preferably subjected to heat treatment for heat-coagulation of the particles of the fluorine resin and improvement of the ink-repellent property.
- the conditions for the heat treatment may be the same as hereinabove stated.
- a fluorine resin emulsion (“ASAHI GUARD AG 710" manufactured by Asahi Glass Co., Ltd.) (100 g; solid content, 20 %) and an aqueous solution of a diazo resin (“DIAZO No. 4L” manufactured by Fairmount Chemical Co.) (50 g; solid content, 6 %) were mixed well, and the resultant mixture was, after filtration, applied to a cleaned surface of an aluminum plate by the aid of a bar coater to-make a photosensitive layer of about 2 microns in thickness (after drying), followed by drying at 60°C for 1 minute to make a photosensitive plate.
- ASAHI GUARD AG 710 manufactured by Asahi Glass Co., Ltd.
- DIZO No. 4L manufactured by Fairmount Chemical Co.
- a film having a positive image was brought into close contact in a vacuum frame, and irradiation was effected for 1 minute by the use of a 3 KW high pressure mercury lamp from a distance of 60 cm. Then, tap water was flowed onto the plate surface, which was scrubbed lightly with cotton to wash out the non-exposed portion and dried at 130°C for 3 minutes to give a printing plate.
- Example 1 On a cleaned surface of an aluminum plate, the aqueous solution of the diazo resin ("DIAZO No. 4L") as used in Example 1 was applied by the aid of a bar coater (No. 4), and the plate was dried at 60°C for 1 minute. On this diazo resin-coated surface, the mixture of "ASAHI GUARD AG 710" and the aqueous solution of "DIAZO No. 4L” as used in Example 1 was applied.by the aid of a bar coater (No. 10), followed by drying at 60°C for 1 minute to give a photosensitive plate.
- a bar coater No. 10
- a film having a positive image was brought into close contact to the surface of the thus obtained photosensitive plate in a vacuum frame, and irradiation was effected for 2 minutes by the use of a 3 KW high pressure mercury lamp. Tap water was flowed onto the plate surface, which was then lightly scrubbed with cotton to give a sharp image. The resulting plate was subjected to heat treatment at 130°C for 3 minutes to give a printing, plate.
- a fluorine resin emulsion (“DICGURARD F-60” manufactured by Dainippon Ink and Chemicals, Inc.) (10 g; solid content, 18 %) and the aqueous solution of the diazo resin (“DIAZO No. 4L”) as used in Example 1 (3.0 g) were mixed well, and the resultant mixture was filtered.
- the aqueous solution of the diazo resin (“DIAZO No. 4L") as used in Example 1 was applied by the aid of a bar coater (No. 4), followed by drying at 60°C for 1 minute.
- the above obtained mixture was applied by the aid of a bar coater (No. 10), followed by drying at 60°C for 1 minute to give a photosensitive plate.
- ASAHI GUARD AG 710 100 g; solid content, 20 %) and the aqueous solution of "DIAZO No. 4L” (600 g; solid content, 6 %) as used in-Example 1 were mixed well, and the resultant mixture was, after filtration, applied to a cleaned surface of an aluminum plate by the aid of a bar coater (No. 10), followed by drying at 60°C for 3 minutes to give a photosensitive plate.
- a film having a negative image was brought into close contact in a vacuum frame, and irradiation was effected for 2 minutes by the use of a 3 KW high pressure mercury lamp from a distance of 60 cm. Then, the plate was immersed into water in a vat and kept quietly for 1 minute to effect vat development, whereby the yellow color of "DIAZO No. 4L" in the non-exposed portion was dissolved out. Then, the plate was dried at 150°C for 3 minutes to give a printing plate.
- Example 1 To a cleaned surface of an aluminum plate, the aqueous solution of the diazo resin ("DIAZO No. 4L") as used in Example 1 was applied by the aid of a bar coater (No. 4), followed by drying at 60°C for 1 minute.
- "ASAHI GUARD AG 710" (100 g) and the aqueous solution of "DIAZO No. 4L” (450 g) as used in Example 1 were mixed well, and the resultant mixture was, after filtration, applied on the diazo resin-coated surface by the aid of a bar coater (No. 10), followed by drying at 60°C for 2 minutes to give a photosensitive plate.
- Example 5 The same procedure as in Example 5 was repeated but employing "DICGURARD F-60" (10 g) as used in Example 3 and the aqueous solution of the diazo resin ("DIAZO No. 4 L ”) (75 g) as used in Example 1 to give a printing plate. The ink attached to the exposed portion of the printing plate, but it did not attach to the non-exposed portion.
- DIGURARD F-60 10 g
- DIAZO No. 4 L aqueous solution of the diazo resin
- a bar coater No. 10
- a film having a negative image was brought into close.contact in a vacuum frame, and irradiation was effected for 1.5 minutes by the use of a 3 KW high pressure mercury lamp from a distance of 60 cm. Then, the plate was immersed into water for 30 seconds to effect vat development, whereby the yellow color of the diazo resin in the non-exposed portion was dissolved out. Then, the plate was dried at 150°C for 3 minutes to give a printing plate.
- the ink attaches to neither the exposed portion nor the non-exposed portion when the amount. of the diazo resin as the water-soluble photosensitive substance is small, and the image can not be distinguished.
- the weight proportion of the aqueous solution of "DIAZO No. 4L” to "ASAHI GUARD AG 710" in terms of the solid components is not less than 30 to 100, the ink attaches to the exposed portion. But, in case of the said proportion being 30 - 50 to 100, the ink-acceptability is not sufficient, and a uniform ink attachment can not be attained. In case of the said proportion being 100 or more to 100, complete ink attachment to the exposed portion takes place.
- ASAHI GUARD AG 710 100 g; solid content, 20 %) and the aqueous solution of "DIAZO No. 4L” (333 g; solid content, 6 %) as used in Example 1 were mixed well, and the resultant.mixture was, after filtration, applied on an anodized surface of a sand-set aluminum plate of 0.2 mm in thickness by the aid of a bar coater (No. 10), followed by drying at 60°C for 1 minute to give a photosensitive plate.
- a film having a negative image was brought into close contact in a vacuum frame, and irradiation was effected for 1.5 minutes by the use of a 3 KW high pressure mercury lamp from a distance of 60 cm. Then, the plate was lightly showered with tap water, whereby the yellow color of "DIAZO No. 4L" in the non-exposed portion was dissolved out. Then, the plate was dried at 150°C for 3 minutes to give a printing plate.
- the printing plate was set on a Davidson type offset printing machine, and printing was carried out - without using dampening water. Even after printing of 1000 sheets of paper, no staining was observed on the paper surface.
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Photosensitive Polymer And Photoresist Processing (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP56107833A JPS589146A (ja) | 1981-07-09 | 1981-07-09 | 水不要平版用版材 |
JP107833/81 | 1981-07-09 |
Publications (3)
Publication Number | Publication Date |
---|---|
EP0069978A2 true EP0069978A2 (de) | 1983-01-19 |
EP0069978A3 EP0069978A3 (en) | 1983-06-22 |
EP0069978B1 EP0069978B1 (de) | 1986-10-15 |
Family
ID=14469189
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP82106054A Expired EP0069978B1 (de) | 1981-07-09 | 1982-07-07 | Flachdruckplatten und ihre Herstellung |
Country Status (6)
Country | Link |
---|---|
US (1) | US4508814A (de) |
EP (1) | EP0069978B1 (de) |
JP (1) | JPS589146A (de) |
AU (1) | AU547804B2 (de) |
CA (1) | CA1179180A (de) |
DE (1) | DE3273852D1 (de) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1990008346A1 (de) * | 1989-01-14 | 1990-07-26 | Hoechst Aktiengesellschaft | Strahlenempfindlicher film aus mindestens einer monomolekularen schicht von fluorhaltigen amphiphilen |
EP0471483A1 (de) * | 1990-08-03 | 1992-02-19 | Canon Kabushiki Kaisha | Verfahren zur Oberflächenverbesserung, Verfahren zur Herstellung einer Druckplatte, Druckplatte und Druckverfahren |
EP0678785A1 (de) * | 1993-10-26 | 1995-10-25 | Toray Industries, Inc. | Wasserlose lithographische form |
WO1997007430A1 (en) * | 1995-08-15 | 1997-02-27 | Horsell Graphic Industries Limited | Water-less lithographic plates |
EP0791857A1 (de) * | 1996-02-26 | 1997-08-27 | Agfa-Gevaert N.V. | Bildaufzeichnungselement, das eine Zweiphasenbeschichtung mit einer dispergierten hydrophoben photopolymerisierbaren Phase enthält |
US5866294A (en) * | 1993-10-26 | 1999-02-02 | Toray Industries, Inc. | Water-less quinonediazide lithographic raw plate |
Families Citing this family (19)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
SE451610B (sv) * | 1983-04-14 | 1987-10-19 | Kontekla Oy | Skrepsil |
DE3421526A1 (de) * | 1984-06-08 | 1985-12-12 | Hoechst Ag, 6230 Frankfurt | Perfluoralkylgruppen aufweisende copolymere, sie enthaltende reproduktionsschichten und deren verwendung fuer den wasserlosen offsetdruck |
JPS61162501A (ja) * | 1985-01-10 | 1986-07-23 | Nippon Paint Co Ltd | 高エネルギ−線硬化樹脂組成物 |
JPH083630B2 (ja) * | 1986-01-23 | 1996-01-17 | 富士写真フイルム株式会社 | 感光性組成物 |
US4897336A (en) * | 1986-04-11 | 1990-01-30 | Chien James C W | Self-developing radiation sensitive resist with amorphous polymer having haloalkyl substitution derived from cycic ether |
JPH02235064A (ja) * | 1989-03-09 | 1990-09-18 | Fuji Photo Film Co Ltd | 湿し水不要感光性平版印刷版 |
JPH02282257A (ja) * | 1989-04-24 | 1990-11-19 | Mitsubishi Kasei Corp | 湿し水不要感光性平版印刷版 |
JP2739387B2 (ja) * | 1991-04-25 | 1998-04-15 | 富士写真フイルム株式会社 | 水無し平版印刷版及びその製版方法 |
JPH05142762A (ja) * | 1991-11-20 | 1993-06-11 | Fuji Photo Film Co Ltd | 湿し水不要感光性平版印刷版および製版方法 |
GB9416204D0 (en) * | 1994-08-11 | 1994-10-05 | Horsell Plc | Water-less lithographic plate |
GB9516723D0 (en) * | 1995-08-15 | 1995-10-18 | Horsell Plc | Water-less lithographic plates |
US5922512A (en) * | 1998-01-29 | 1999-07-13 | Kodak Polychrome Graphics Llc | Processless direct write printing plate having heat sensitive polymer and methods of imaging and printing |
US6014929A (en) * | 1998-03-09 | 2000-01-18 | Teng; Gary Ganghui | Lithographic printing plates having a thin releasable interlayer overlying a rough substrate |
US6849377B2 (en) | 1998-09-23 | 2005-02-01 | E. I. Du Pont De Nemours And Company | Photoresists, polymers and processes for microlithography |
JP4327360B2 (ja) * | 1998-09-23 | 2009-09-09 | イー・アイ・デュポン・ドウ・ヌムール・アンド・カンパニー | ホトレジスト、ポリマーおよびマイクロリソグラフィの方法 |
US6242156B1 (en) | 2000-06-28 | 2001-06-05 | Gary Ganghui Teng | Lithographic plate having a conformal radiation-sensitive layer on a rough substrate |
US7300743B2 (en) * | 2003-03-06 | 2007-11-27 | E. I. Du Pont De Nemours And Company | Radiation durable organic compounds with high transparency in the vacuum ultraviolet, and method for preparing |
US20090084279A1 (en) * | 2007-09-28 | 2009-04-02 | Toppan Printing Co., Ltd. | Relief printing plate and printed matter |
EP2381031A4 (de) * | 2009-01-19 | 2014-08-27 | Unitika Trading Co Ltd | Feuchtigkeitsdurchlässige und wasserfeste faser sowie herstellungsverfahren dafür |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3910187A (en) * | 1971-08-30 | 1975-10-07 | Du Pont | Dry planographic printing plate |
JPS5178224A (ja) * | 1974-12-27 | 1976-07-07 | Canon Kk | Zokeiseiho |
GB1501128A (en) * | 1975-05-06 | 1978-02-15 | Minnesota Mining & Mfg | Development-free driographic printing plate |
EP0037094A2 (de) * | 1980-03-31 | 1981-10-07 | Daikin Kogyo Co., Ltd. | Fluoralkylacrylate und diese enthaltende Zusammensetzung |
EP0040841A1 (de) * | 1980-05-27 | 1981-12-02 | Daikin Kogyo Co., Ltd. | Lichtempfindliches Material |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3790382A (en) * | 1971-04-16 | 1974-02-05 | Minnesota Mining & Mfg | Fluorinated polyamide-diazo resin coating composition |
JPS4968803A (de) * | 1972-11-02 | 1974-07-03 | ||
US3901700A (en) * | 1973-05-17 | 1975-08-26 | Eastman Kodak Co | Repellent compositions of fluorinated polymers and oils in electrophotographic processes |
US3997349A (en) * | 1974-06-17 | 1976-12-14 | Minnesota Mining And Manufacturing Company | Light-sensitive development-free driographic printing plate |
JPS5921542B2 (ja) * | 1974-11-15 | 1984-05-21 | 住友化学工業株式会社 | 印刷版の製法 |
JPS54135004A (en) * | 1978-04-10 | 1979-10-19 | Fuji Photo Film Co Ltd | Photosensitive flat printing plate |
JPS55527A (en) * | 1978-06-16 | 1980-01-05 | Fuji Photo Film Co Ltd | Photosensitive planographic plate |
US4224398A (en) * | 1979-05-29 | 1980-09-23 | Richardson Graphics Company | Photopolymerizable latex systems |
JPS5734558A (en) * | 1980-08-11 | 1982-02-24 | Fuji Photo Film Co Ltd | Photosensitive printing plate |
-
1981
- 1981-07-09 JP JP56107833A patent/JPS589146A/ja active Granted
-
1982
- 1982-07-06 AU AU85645/82A patent/AU547804B2/en not_active Ceased
- 1982-07-07 EP EP82106054A patent/EP0069978B1/de not_active Expired
- 1982-07-07 CA CA000406780A patent/CA1179180A/en not_active Expired
- 1982-07-07 DE DE8282106054T patent/DE3273852D1/de not_active Expired
- 1982-07-08 US US06/396,476 patent/US4508814A/en not_active Expired - Fee Related
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
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US3910187A (en) * | 1971-08-30 | 1975-10-07 | Du Pont | Dry planographic printing plate |
JPS5178224A (ja) * | 1974-12-27 | 1976-07-07 | Canon Kk | Zokeiseiho |
GB1501128A (en) * | 1975-05-06 | 1978-02-15 | Minnesota Mining & Mfg | Development-free driographic printing plate |
EP0037094A2 (de) * | 1980-03-31 | 1981-10-07 | Daikin Kogyo Co., Ltd. | Fluoralkylacrylate und diese enthaltende Zusammensetzung |
EP0040841A1 (de) * | 1980-05-27 | 1981-12-02 | Daikin Kogyo Co., Ltd. | Lichtempfindliches Material |
Non-Patent Citations (2)
Title |
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CHEMICAL ABSTRACTS, vol. 86, part 16, 18th April 1977, page 497, no. 113729p, Columbus Ohio (USA); & JP - A - 76 78 224 (CANON K.K.) (07-07-1976) * |
XEROX DISCLOSURE JOURNAL, vol. 1, no. 6, June 1976, Xerox Corporation, page 33, Stamford Connection (USA); * |
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1990008346A1 (de) * | 1989-01-14 | 1990-07-26 | Hoechst Aktiengesellschaft | Strahlenempfindlicher film aus mindestens einer monomolekularen schicht von fluorhaltigen amphiphilen |
US5258262A (en) * | 1989-01-14 | 1993-11-02 | Hoechst Aktiengesellschaft | Radiation-sensitive film composed of at least one mono-molecular layer of fluorine-containing amphiphiles |
EP0471483A1 (de) * | 1990-08-03 | 1992-02-19 | Canon Kabushiki Kaisha | Verfahren zur Oberflächenverbesserung, Verfahren zur Herstellung einer Druckplatte, Druckplatte und Druckverfahren |
EP0678785A1 (de) * | 1993-10-26 | 1995-10-25 | Toray Industries, Inc. | Wasserlose lithographische form |
EP0678785A4 (de) * | 1993-10-26 | 1996-01-10 | Toray Industries | Wasserlose lithographische form. |
US5866294A (en) * | 1993-10-26 | 1999-02-02 | Toray Industries, Inc. | Water-less quinonediazide lithographic raw plate |
WO1997007430A1 (en) * | 1995-08-15 | 1997-02-27 | Horsell Graphic Industries Limited | Water-less lithographic plates |
EP0791857A1 (de) * | 1996-02-26 | 1997-08-27 | Agfa-Gevaert N.V. | Bildaufzeichnungselement, das eine Zweiphasenbeschichtung mit einer dispergierten hydrophoben photopolymerisierbaren Phase enthält |
US5922507A (en) * | 1996-02-26 | 1999-07-13 | Agfa-Gevaert, N.V. | Imaging element comprising a two-phase layer having a disperse hydrophobic photopolymerisable phase |
Also Published As
Publication number | Publication date |
---|---|
AU8564582A (en) | 1983-01-13 |
JPS589146A (ja) | 1983-01-19 |
JPH0145608B2 (de) | 1989-10-04 |
EP0069978A3 (en) | 1983-06-22 |
EP0069978B1 (de) | 1986-10-15 |
CA1179180A (en) | 1984-12-11 |
US4508814A (en) | 1985-04-02 |
DE3273852D1 (en) | 1986-11-20 |
AU547804B2 (en) | 1985-11-07 |
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